Electronics

3D Models for Step-Up and Step-Down Power Modules

This collection gathers 3D-printable parts around DC-DC power modules: boost boards that raise voltage, buck boards that lower it, combined regulators, and the housings built for them. It is useful when you already have a converter board and want a case, a mounting plate or a front panel for it. Many entries are small STL parts, so a single 3D printer session is often enough to produce them. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

How this collection is put together

Polyzon assembles this collection from search results on the connected platforms. Repeats and models without a preview are removed, weak matches go to the end, and the rest keeps the search order. Models belong to their authors — check the terms on each model's page.

Selection rules: the Polyzon editorial team · Text updated 2026-10-11


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About the category

«3D Models for Step-Up and Step-Down Power Modules»

The models fall into a few groups. Boost converters take a low input and raise it, while buck converters do the opposite, and combined boards switch between both directions. Alongside the electronics sit printed enclosures, lids, front plates and mounting brackets, plus USB-fed and battery-charging modules that people use in power banks and small supplies. The printed parts differ mainly in how the board is held: some are full boxes with cutouts, others are simple trays or faceplates.

When choosing a model, compare its stated internal dimensions with the board you own, including terminal blocks, potentiometers, displays and connector height, since those often decide whether a case closes properly. Look at the mounting hole spacing, the position of the USB or barrel jack openings, and whether the author notes supports, screws or heat-set inserts. Check the material and settings listed on the model page, and read the photos of real prints to see wall thickness and how the lid fits.

If the results are too narrow, try synonyms: boost converter, step-up regulator, DC-DC converter, voltage regulator board, power supply module, or simply case, housing and enclosure. Related searches such as bench power supply, battery charger, power bank and lab supply often lead to the same kind of printed parts. Combining a board type with a part type, for example a regulator with a faceplate, usually narrows the list faster than one long phrase.

FAQ

Frequently asked questions

What is the difference between a step-up and a step-down module?
A step-up, or boost, module raises the input voltage to a higher output, while a step-down, or buck, module lowers it. Some boards do both and are listed as step-up/step-down converters.
Do these models include the electronic components?
No. The files are for printed parts such as cases, lids and mounting plates. The converter board itself is a separate item you supply.
What should I measure before printing an enclosure?
Measure the board outline, the mounting hole spacing and the height of the tallest parts, including terminals, knobs and displays. Also note where the connectors sit, because those positions determine the cutouts.
Which material works for a power module case?
It depends on how warm the board runs and where it is used. Check the material and settings the author lists, and look at photos of printed examples before deciding.

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